You may just have to do with the regular IR for these homebrews. I really don't keep up on the latest homebrew news, (built 7 myself) but the black IR stuff is not being used in evryday homebrews.
I could be wrong though. Like i said, i haven't been keeping up on the new technology.
For some "regular" homebrew building info, check these links out.
http://http://www.chasingame.com/for...c.php?f=4&t=39
http://http://www.chasingame.com/for...php?f=4&t=4547